07/27/2026
10g of protein in a slice of lemon cake? Yes, please. 🍋💪
This Protein Lemonade Sheet Cake is light, refreshing, and the perfect summer treat.
Cake:
• 1 (15.25 oz) lemon cake mix
• 2 scoops JJ & Erika Peterson Simply Vanilla whey protein powder
• 1½ cups ultra-filtered fat-free milk
• 150g plain nonfat Greek yogurt
• Zest of 1 lemon
Icing:
• 4 tbsp white chocolate chips (56g)
• 1 tbsp butter
• 3 tbsp Fairlife fat-free milk
• 1 scoop Simply Vanilla whey protein powder
• ½ tbsp lemon juice
• Zest of 1 lemon
Directions:
Mix together all cake ingredients. Pour into a sheet pan and bake at 350°F for 25 minutes. Let cool for 20 minutes.
For the icing, microwave the white chocolate chips and butter for 1 minute. Stir, then continue microwaving in 15-second intervals if needed until smooth. Stir in the milk, lemon juice, and lemon zest. Slowly whisk in the protein powder until smooth. Spread a thin layer over the cooled cake, then top with extra lemon zest and fresh lemon slices.
💬 Find the printable recipe with full macros on my website! It’s also pre-loaded in MyFitnessPal and MacrosFirst for easy tracking.
| Protein Cake | Lemon Protein Cake | High Protein Dessert