Simple Christmas Sheet Cake - Pour batter into prepared sheet pan and smooth top. Add water and bring to a boil. Web in a large pot, melt butter. Stir in eggs, vanilla, baking soda, and salt until all ingredients are well blended. Remove pot from heat and briskly stir in flour, sugar, and sour cream.
Pour batter into prepared sheet pan and smooth top. Remove pot from heat and briskly stir in flour, sugar, and sour cream. Stir in eggs, vanilla, baking soda, and salt until all ingredients are well blended. Add water and bring to a boil. Web in a large pot, melt butter.