Step 1

Line a 8½" x 4½" loaf pan with parchment paper; Leave an overhang to lift out later.

Step 2

In a bowl combine oat flour, coconut flour, unflavored protein powder and vanilla protein powder.

Step 3

Add in milk (a little at a time) and mix. Mixture will be like a dough.Add more milk if too dry, coconut flour if too wet.

Step 4

Transfer to pan and press down.

Step 5

In a bowl, mix vanilla protein powder, yogurt and coconut flour until smooth.Mixture should be thick but smooth and spreadable.Add milk if too thick, coconut flour if too thin.

Step 6

Spread on top of base and use back of spoon/spatula or fingers to smoothen.

Step 7

Place in freezer 10-15 minutes to harden.

Step 8

Lift layers out of pan, place on cutting board and using a sharp knife, slice into 8 bars.

Step 9

Mix yogurt and vanilla protein powder in a bowl until smooth like frosting.

Step 10

Smear half on top of half bars.Add a drop of optional red food coloring and smear on remaining bars.Sprinkle on sprinkles.