• 1/2 cup matzo cake meal
• 6 tablespoons potato starch
• 3/4 cup sugar
• 1/4 cup cocoa
• 1/4 teaspoon salt
• 2 teaspoons baking powder 
• 1 teaspoon baking soda
• 2/3 cup nonfat yogurt
• 2/3 cup low-fat milk
• 1 egg, lightly beaten
• 1 package vanilla sugar, or 1 teaspoon vanilla
• 1 cup chocolate chips

Mix dry ingredients. Mix wet ingredients. Blend the two mixtures just till moistened. Fold in chocolate chips. Place in oiled or non-stick muffin tins. Bake about 15 minutes at 400 F, or till they test done with a toothpick.