Remove 1 pouch Krusteaz Professional Ready to Bake Sweet Cream Vanilla Cake & Muffin batter from refrigerator. No slacking required.
Prepare 16x12x1-inch half-sheet pan by lightly greasing, lining with parchment paper and then lightly greasing the parchment paper. If using a pan extender (recommended), lightly grease the sides of the pan extender.
Cut open one end of the pouch and squeeze batter into a bowl. Stir in lemon juice, lemon zest, egg shade color and eggs.
Pour mixture into prepared half-sheet pan.
For convection oven, bake at 300°F at low fan speed for 25-30 minutes, turning pan halfway through bake time.