High-Protein Banana Pudding — Creamy & Easy

Silky banana custard meets tangy Greek yogurt for a dessert that tastes indulgent but packs protein — High-Protein Banana Pudding is smooth, cool, and ready in about 25 minutes. I perfected this version after testing it eight times at home and refining the balance of sweetness and texture. The method borrows a few tricks from classic custards and my pastry training, so you get a stable, creamy set without heavy cream or a lot of sugar. If you like a baked finish, try a richer take in my baked banana pudding cheesecake for inspiration: banana pudding cheesecake twist. Read on for clear steps, precise measurements, and sensible swaps so this becomes your go-to banana dessert.

Why this recipe works

Balances protein and texture: Greek yogurt adds protein and tang while a small amount of whey isolate (or protein powder) boosts protein without graininess.
Gentle thickening: A cornstarch slurry gives a glossy custard without eggs, making it quick and stable after chilling.
Temperature control prevents separation: Cooking the custard to the right temperature and cooling it quickly avoids curdling and grainy texture.
Layering keeps texture alive: Bananas are layered between custard and cookies to stay tender, not mushy.
Tested technique: After multiple tests I settled on the cook time and chill window for consistent creaminess every time.

Ingredients breakdown

Ripe bananas (3 medium): Provide sweetness and banana flavor. Use slightly firm-ripe fruit (yellow with a few brown spots). Overripe bananas make the layers too soft.
Whole milk 480 ml (2 cups): Adds richness and a smooth mouthfeel; lower-fat milks thin the custard. For a lower-calorie version, use 2% but expect a slightly less silky finish.
Greek yogurt 240 g (1 cup): Thick, tangy backbone that increases protein and stabilizes the custard. Use plain full-fat or 2% for best texture.
Whey protein isolate or unflavored protein powder 30 g (1 oz / about 1 scoop): Boosts protein without a chalky taste when dissolved into the milk first. If using flavored powder, reduce added sugar.
Granulated sugar 60 g (1/4 cup): Sweetens without overpowering; adjust to taste with ripe bananas.
Cornstarch 30 g (3 tbsp): Thickener that gives glossy finish. Mix with a little cold milk to make a slurry before adding to hot liquid.
Salt 1/4 tsp (1.5 g): Balances sweetness and brings out banana flavor.
Vanilla extract 1 tsp (5 ml): Classic flavor lift.
Graham crackers or vanilla wafers 180 g (about 12–15 crackers/wafers): Provide crunch and base texture. If using gluten-free crackers, expect a slightly different crumb.
Unsalted butter 30 g (2 tbsp), melted: Brush over crackers for richer flavor and to slow sogginess.
Substitution notes:
Greek yogurt can be substituted with skyr or thick plant-based yogurt, but the tang and protein will vary.
If you only have whey concentrate, use it but the final texture may be slightly creamier and less neutral in taste.
Use Diamond Crystal kosher salt for the listed amount; if using Morton, halve it (Morton is denser).

Essential equipment

Medium saucepan (2–3 liters): Heavy-bottomed to prevent hot spots.
Whisk and heatproof spatula: For smooth mixing and scraping.
Digital instant-read thermometer: Useful to check custard temperature for consistent results.
Mixing bowls (one for slurry): For the cornstarch and cold milk.
9×9-inch (23 x 23 cm) baking dish or individual ramekins: For layering; a shallow dish chills faster than a deep one.
Fine-mesh sieve (optional): Strain the custard for extra-smooth finish.
No ice cream maker is needed; if you do own one and want a frozen take, see this churn-style banana pud ice idea: banana pudding churned into ice cream.

Step-by-step instructions

Prep Time 15 minutes | Cook Time 10 minutes | Inactive Time 1 hour chilling | Total Time 25 minutes | Servings 6 (1 cup each)

Step 1: Prepare the bananas and crackers

Peel and slice 3 medium bananas into 6–7 mm (1/4 inch) rounds. Lay out 180 g (about 12–15) graham crackers or vanilla wafers and brush each lightly with 30 g (2 tbsp) melted unsalted butter to slow sogginess. Chill the crackers briefly while you make the custard. Timing: 5–7 minutes.

Step 2: Warm the milk and dissolve protein

In a medium saucepan, combine 480 ml (2 cups) whole milk and 30 g (1 scoop) whey protein isolate. Warm over medium heat, whisking until the protein fully dissolves and the milk is steaming but not boiling, about 3–4 minutes. Do not let it scorch.

Step 3: Make the cornstarch slurry

In a small bowl, whisk 30 g (3 tbsp) cornstarch with 60 ml (1/4 cup) cold milk until smooth and lump-free. This prevents clumps when added to hot liquid. Prepare before the milk reaches high heat.

Step 4: Cook the custard

Add 60 g (1/4 cup) granulated sugar and 1/4 tsp salt to the hot milk, then whisk in the cornstarch slurry. Cook over medium-low, whisking constantly, until the mixture thickens and reaches about 85°C (185°F), about 3–5 minutes. Cook just until it thickens and coats the back of a spoon; avoid boiling.

Step 5: Finish the custard

Remove from heat. Whisk in 240 g (1 cup) Greek yogurt and 1 tsp (5 ml) vanilla extract until smooth. If you see any tiny lumps, push the custard through a fine-mesh sieve into a clean bowl. Cool for 10 minutes at room temperature, stirring occasionally to release steam.

Step 6: Layer and chill

Place a single layer of buttered crackers in the bottom of your dish or ramekins (about 1/3 of the crackers). Spoon half the custard over the crackers, then arrange half the banana slices in a single layer. Repeat with remaining crackers, custard, and banana slices. Cover tightly and chill for at least 1 hour, or up to 4 hours for best texture. Inactive time: 1–4 hours.

Step 7: Serve

Before serving, optionally top with a few crushed crackers or a dollop of whipped cream. Serve chilled. Keeps firm and creamy after chilling; if too firm, let sit 10 minutes at room temperature before serving.

Expert Tips & Pro Techniques

Avoid grainy protein: Dissolve protein powder in warm milk before cooking to reduce grit. If it still feels slightly chalky, a short blend with an immersion blender smooths it out.
Cornstarch timing: Add the slurry before the milk simmers; once the mixture thickens, keep whisking only until it becomes glossy and coats a spoon.
Common mistake — overcooking: Boiling the custard can make it rubbery. Stop cooking when it thickly coats the back of a spoon, about 85°C (185°F).
Make-ahead: You can make the custard a day ahead and refrigerate. Press plastic wrap directly on the surface to prevent a skin. Assemble and layer the day you serve to avoid soggy bananas.
Professional technique for home cooks: For an ultra-smooth result, strain the hot custard through a fine sieve into a bowl and cool it in an ice bath, stirring until lukewarm before adding yogurt.
Banana protection: To slow browning, toss sliced bananas very lightly in 1 tsp lemon juice before layering. It adds minimal tang and keeps color.

Storage & Reheating

Refrigerator: Store in an airtight container or covered baking dish. Best within 3–4 days. The texture is best eaten within 48 hours; bananas may soften further after that.
Freezer: This pudding does not freeze well. The yogurt and custard separate and the banana texture degrades. If you must freeze, assemble without bananas and freeze the custard only for up to 1 month; thaw overnight in the fridge and stir well before use.
Reheating: Serve chilled. If you prefer slightly warmer, let portions sit at room temperature 15–20 minutes. Do not microwave full container — microwaving can cause separation and a rubbery texture.

Variations & Substitutions

Gluten-Free: Use gluten-free graham crackers or crushed GF shortbread in a 1:1 swap. No change to custard; chilling time the same.
Vegan-ish: Replace milk with unsweetened oat milk and Greek yogurt with a thick soy or coconut-based yogurt (full-fat). Swap cornstarch for arrowroot in a 1:1 ratio and omit whey/protein powder. Expect a softer set and slightly different flavor; chill longer.
Lower Sugar / WW-friendly: Reduce granulated sugar to 30 g (2 tbsp) and use a ripe banana for natural sweetness. Use a zero-calorie sweetener like erythritol to taste if desired. Texture will remain the same.
Baked finish: For a crème brûlée-style top, assemble in ovenproof ramekins and torch the top of lightly sugared custard. Keep baking minimal — this recipe is primarily stovetop-cooked, so only torch the sugar.
Banana pudding parfaits: Layer in jars with toasted oats or granola for breakfast-friendly bowls; swap wafers for 100 g (1 cup) toasted oats. The custard makes a good overnight pudding base similar to a chia-less overnight oat idea in my pumpkin chia pudding notes.

Serving suggestions & pairings

Coffee pairing: Serve with a dark roast espresso or cold brew to cut the sweetness.
Boozy twist: Add a splash (15 ml / 1 tbsp) of banana liqueur or dark rum to the custard for adult parties.
Fresh garnish: Top with toasted pecans or sliced strawberries for color and texture; pair ideas include my strawberry-banana graham pudding for a bright contrast: strawberry-banana graham pairing.
Brunch idea: Spoon into small cups alongside fried chicken sliders for a sweet-salty brunch board.

Nutrition information
Per serving (Serving size: 1 cup; recipe yields 6 servings)

Calories: 230 kcal
Total Fat: 7 g
Saturated Fat: 3.5 g
Cholesterol: 10 mg
Sodium: 180 mg
Total Carbohydrates: 31 g
Dietary Fiber: 2 g
Sugars: 19 g
Protein: 16 g
Nutrition values are estimates. Actual values may vary based on specific ingredients and preparation methods.

Frequently Asked Questions
Q: Why did my pudding turn out grainy?
A: Graininess usually comes from protein powder not dissolving or cornstarch not mixed well. Dissolve protein in warm milk first and make a lump-free slurry. Strain the custard if needed.

Q: Can I make this without eggs?
A: Yes. This recipe is egg-free; cornstarch thickens the custard. If you prefer an egg-based custard, reduce cornstarch and temper beaten eggs into the hot milk carefully.

Q: Can I double this recipe?
A: Yes. Use a larger saucepan and whisk constantly. Cook time may increase by a few minutes. Chill in a larger shallow pan for faster cooling.

Q: Can I prepare this the night before?
A: You can make the custard a day ahead and refrigerate with plastic wrap on the surface. For best texture, assemble with bananas the day you serve or add bananas just before serving.

Q: How long does this keep in the fridge?
A: Stored in an airtight container, assembled pudding keeps 3–4 days. Bananas will brown and soften over time; eat within 48 hours for best texture.

Q: Can I substitute protein powder with collagen?
A: Collagen dissolves well and won’t affect flavor much, but it doesn’t have the same thickening or mouthfeel as whey. Use the same weight and taste, then adjust sweetness if needed.

Q: My bananas got mushy — what went wrong?
A: Mushy bananas usually mean they sat too long against a moist layer or were overripe. Use slightly firm-ripe fruit and layer them between custard and crackers so they’re not saturated.

Conclusion

This High-Protein Banana Pudding gives you creamy texture, boosted protein, and simple technique for a reliable dessert or sweet snack. For lighter takes and alternate high-protein ideas, see Healthy Banana Pudding (High Protein & WW Friendly). If you want a breakfast-style twist using the same flavors, try this Banana Pudding Overnight Oats {Gluten-Free| High Protein} for a grab-and-go option.