Cottage Cheese Protein Key Lime Pie Cups

If you love key lime pie but want something lighter, these cottage cheese protein key lime pie cups are a great little treat to try.

They have that bright, tangy lime flavor with a smooth, creamy filling and a buttery graham crust on the bottom.

The cottage cheese is what makes the filling so good. Once you blend it, it turns silky smooth and gives the pie a rich, creamy texture.

It also makes these cups high in protein, so you get a dessert that actually keeps you full.

Best of all, you just blend the filling, spoon it into cups, and let the fridge do the rest. No baking needed.

Why I Love This Recipe

Bright and Zingy – The key lime juice and fresh zest give these cups a bold, tangy flavor that tastes just like real key lime pie.

Smooth and Creamy – Blending the cottage cheese with Greek yogurt makes the filling silky and rich without a single lump.

Packed With Protein – Every cup is loaded with protein from cottage cheese, Greek yogurt, and protein powder, so it fills you up and fuels your day.

No Baking Needed – You just blend, pour, and chill, which means no oven and almost no cleanup to worry about.

The Ingredients

For The Graham Crust

• 1 cup Graham Cracker Crumbs
• 3 tbsp Melted Unsalted Butter
• 1 tbsp Light Brown Sugar

For The Key Lime Filling

• 2 cups Full Fat Cottage Cheese
• 1/2 cup Plain Greek Yogurt
• 1/3 cup Vanilla Protein Powder
• 1/3 cup Key Lime Juice
• 1/4 cup Pure Maple Syrup
• 2 tsp Key Lime Zest
• 1 tsp Pure Vanilla Extract
• 1 1/2 tsp Unflavored Gelatin
• 2 tbsp Cold Water
• 2 tbsp Hot Water

How to Make This Recipe

Step 1

Stir the graham cracker crumbs, melted butter, and brown sugar until evenly moistened. Divide the mixture among six dessert cups and press it into the bottoms.

Step 2

Sprinkle the gelatin over the cold water and let it stand for 5 minutes to soften.

Step 3

Add the hot water to the softened gelatin and stir until the gelatin dissolves completely.

Step 4

Blend the cottage cheese, Greek yogurt, vanilla protein powder, key lime juice, maple syrup, lime zest, and vanilla until completely smooth.

Step 5

With the blender running on low, pour in the dissolved gelatin and blend for 20 seconds, until evenly incorporated.

Step 6

Divide the key lime filling among the prepared cups and smooth the tops.

Step 7

Refrigerate the pie cups for at least 4 hours, until cold and firmly set.

Quick Tips

Blend the Cottage Cheese Until Totally Smooth

Cottage cheese has those little curds, and if you don’t blend them out you’ll get a lumpy, grainy filling instead of a creamy one.

From my experience, let the blender run for a full minute or two, and stop to scrape down the sides once or twice. You want the filling to look like smooth pudding before you move on.

This step is what makes these cups feel like real key lime pie and not just flavored cottage cheese, so don’t rush it.

Work Fast With the Gelatin

Once you mix the hot water into the softened gelatin, it needs to go into the blender while it’s still warm and liquid.

If it sits too long it starts to set and turns into little rubbery bits that won’t blend in smoothly. My favorite trick here is to have the filling already blended and ready, so all you do is pour the gelatin in with the blender running.

Blend it right in on low for those 20 seconds so it spreads evenly through the whole batch. That even mix is what gives you a filling that sets firm all the way through.

Use Real Key Lime Juice and Zest

Key limes have a sharper, more floral taste than regular limes, and that’s what gives this pie its classic flavor.

If you can get fresh key limes, juice and zest them yourself for the brightest taste. Bottled key lime juice works fine too when fresh ones are hard to find.

Always zest before you juice, since it’s much easier to grate the outside of a whole lime than a squeezed one. And only zest the green part, because the white layer underneath tastes bitter.

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Quick Answers

Can I use regular lime juice instead of key lime juice?

Yes, regular lime juice works just fine here and the pie cups will still taste bright and fresh. Key limes have a slightly more tart and floral flavor, but most people will not notice a huge difference in the final dessert.

If you use bottled key lime juice, that works too and saves you the squeezing. Just try to grab a good quality one so the flavor stays clean.