Decadent Texas Chocolate Sheet Cake

Follow our step-by-step guide on how to make Decadent Texas Chocolate Sheet Cake.

1. Step 1

   Start by preheating your oven to a cozy 375°F (190°C). Grab a 15 1/2 x 10 1/2-inch jelly roll pan and give it a good greasing to ensure your cake slides out easily later on.

2. Step 2

   In a large saucepan, combine the water, 1 cup of margarine, and 1/4 cup of cocoa powder. Bring this mixture to a rolling boil, then take it off the heat. Stir in the flour, white sugar, and salt until everything is well combined and smooth.

3. Step 3

   In a separate bowl, beat together the eggs, sour cream, and baking soda until fluffy. Gently fold this mixture into the warm flour mixture, being careful not to overmix. You want it just blended for that perfect texture!

4. Step 4

   Pour the luscious batter into your prepared jelly roll pan, spreading it evenly. Pop it into the preheated oven and bake for about 20 to 22 minutes, or until a toothpick inserted in the center comes out clean. The aroma will be irresistible!

5. Step 5

   While the cake is baking, prepare the icing. In another saucepan, combine the remaining 1/2 cup of margarine, milk, 1/4 cup of cocoa powder, and vanilla extract. Bring this to a boil, then remove it from the heat and stir in the confectioners' sugar until the icing is smooth and glossy.

6. Step 6

   As soon as your cake comes out of the oven, pour the warm icing over the top, spreading it out to cover every inch. Let the cake cool in the pan before cutting it into squares and serving. Enjoy this delightful treat with friends and family!