Protein Fudge: Salted Caramel White Chocolate Bites

By Jon Klipstein, U.S. Army Combat Veteran & Founder of Die Tryin Co., and David Ortiz, Recipe Developer & U.S. Army Combat Veteran

DESSERT BITES, 49 CALORIES, REAL PROTEIN

Most "protein fudge" recipes online are 200 calories per square and taste like a chalky protein bar that lost a fight with a microwave. This one's different. White chocolate, whey isolate, peanut butter, flaky sea salt — 49 calories per square, no baking, ready in 35 minutes including chill time.

Portion-controlled, macro-friendly, dangerously good. Make a batch on Sunday and they last all week.

SALTED CARAMEL PROTEIN FUDGE

Yield: ~30 squares (1-inch each) · Prep: 5 minutes · Chill: 30 minutes

Macros (per 1-inch square): 49 cal · 1.5g protein · 6.8g carbs · 3.3g fat

Ingredients

• 9 oz white chocolate chips
• 32g Post Iso Salted Caramel (about 1 scoop — Vanilla works as a sub)
• 1/2 tsp vanilla extract
• 1 tbsp natural peanut butter, for topping
• Flaky sea salt, for topping

Instructions

1. Line a small pan (roughly 5x7" or 6x6") with parchment paper.
2. Add the white chocolate chips to a microwave-safe bowl. Microwave for 1 minute on high, then in 15-second intervals, stirring between each, until fully melted and smooth.
3. Immediately stir in the Post Iso. Work fast — the white chocolate will start to set as it cools.
4. Add the vanilla extract and fold everything together until you've got a thick, glossy batter.
5. Pour into the parchment-lined pan and spread evenly with a spatula.
6. Warm the peanut butter for 10 seconds in the microwave (so it drizzles), then swirl it across the top of the fudge with a knife.
7. Finish with a generous pinch of flaky sea salt.
8. Refrigerate at least 30 minutes until firm. Lift out by the parchment, cut into 1-inch squares, serve cold.

WHY THIS RECIPE WORKS

• White chocolate is the structure. It sets firm at fridge temp, holds the fudge shape, and gives you a base that takes flavors without overpowering them. Dark chocolate fights with salted caramel; milk chocolate is too sweet. White is the right call here.
• Post Iso doesn't curdle in melted chocolate. Whey isolate folds in smooth when the chocolate is warm. Whey concentrate clumps, casein turns rubbery, plant proteins go gritty. Isolate is the only one that holds the fudge texture.
• Salt sharpens the sweet. The flaky sea salt isn't decoration — it cuts the sugar of the white chocolate and pulls the salted-caramel notes forward. Skip it and the fudge tastes flat.
• Small squares = portion control. 49 calories means you can eat 3 and it's still a 147-calorie dessert. Try doing that with regular fudge.

FLAVOR VARIATIONS

Same fudge base, different finish:

• Chocolate fudge — swap white chocolate for dark; swap Post Iso Salted Caramel for Chocolate; skip the peanut butter, finish with a pinch of cinnamon.
• Cookies & cream — fold 4 crumbled sugar-free Oreos into the batter before pouring.
• Birthday cake — swap to Post Iso Vanilla; fold in 1 tbsp rainbow sprinkles + 1/4 tsp almond extract; skip the peanut butter.
• Mint chocolate — swap to dark chocolate base + Post Iso Chocolate; add 1/4 tsp peppermint extract; top with crushed sugar-free Andes mints.
• Cinnamon roll — add 1 tsp cinnamon to the batter; skip peanut butter; drizzle with a thin glaze (powdered Swerve + almond milk).

WHY PORTION-CONTROLLED PROTEIN DESSERTS MATTER

A 49-calorie square isn't going to crush your daily protein target — but it's the difference between a dessert that fits the plan and one that wrecks it. The International Society of Sports Nutrition's position stand recommends 1.4–2.0g of protein per kg of bodyweight daily for active people (ISSN, 2017). The bigger win is calorie control — most homemade fudge runs 150–250 cal per square. This one comes in at a third of that.

Three squares = ~147 calories and 4.5g of protein, in a dessert that actually tastes like dessert. That's the macro math win.

FREQUENTLY ASKED QUESTIONS

Can I use a different protein powder?

Whey isolate is the only protein that folds into melted chocolate smoothly. Whey concentrate clumps the second it hits warm chocolate, casein turns dense, and plant proteins crumble. Post Iso is what makes this fudge work.

What if I don't have Salted Caramel flavor?

Use Post Iso Vanilla and add 1 tbsp sugar-free caramel sauce to the melted chocolate before stirring in the protein. Same flavor result.

How do I store these?

Airtight in the fridge for up to 7 days. They hold their shape best cold — if left at room temp for more than an hour, the white chocolate softens and the texture turns sticky. Freeze for up to 2 months wrapped tightly.

Can I make this lower-fat?

Swap natural peanut butter for powdered peanut butter (PB Fit) reconstituted with water — cuts ~2g of fat across the whole batch. Bigger lever: cut the white chocolate to 7 oz and replace the missing volume with extra protein powder. Macros land around 35 cal / 1.8g protein / 4g carbs / 2g fat per square.

Why did my fudge come out grainy?

Either the chocolate got too hot (overheated white chocolate seizes), or you waited too long to mix in the protein. Microwave in 15-second intervals from the start, and stir the protein in the second the chocolate is smooth.

Can I double the recipe?

Yes — scale everything 2x and use an 8x8 pan. Microwave time on the chocolate goes up to 90 seconds for the first round, then 20-second intervals. Watch closely; white chocolate burns faster than dark.

READY TO GEAR UP?

The whole recipe runs on the protein powder. Post Iso Salted Caramel — 24g protein, 110 calories, DigeZyme enzymes, folds clean into melted chocolate without clumping. Grab a tub and start baking.

More recipes to stock the kitchen: salted caramel protein cupcakes, fudgy protein brownies, pumpkin chocolate chip protein donuts, protein rice krispie treats, chocolate peanut butter protein mousse, protein waffles, or Reese's protein cheesecake bars. Want to nail your daily macro number? Start with the guide to counting macros. Not sure where to start? Take the quiz.

ALWAYS FORWARD.