Preheat oven to 350°F. Grease a 13x18” sheet pan.
In a large bowl, mix flour, sugar, baking soda, and salt.
In another bowl, whisk together sour cream, eggs, and almond extract. Stir into dry ingredients.
In a saucepan, bring water and butter to a boil. Remove from heat and stir into the batter.
Pour into the prepared pan and bake for 17–20 minutes.