Start with room-temperature egg whites, use a clean stainless steel bowl and beat the mixture until stiff, glossy peaks form.

Muffin Tins: Two 12-cup regular size muffin tins. Nonstick Cooking Spray: To grease the muffin tins. Tart Shaper or Spoon: To shape the cookie dough into crusts. Mixing Bowls: Small bowls for ...