Texas Sheet Cake is a yummy, old-fashioned, tried and true moist chocolate sheet cake with a hint of cinnamon! All the ingredients in this cake are mixed up by hand so there is no mixer needed.
Grease a jelly roll pan with my homemade cake release. (You can grease and flour, but I prefer cake release.) Set pan aside.
Preheat oven to 375° F.
Add flour and sugar to a medium-sized mixing bowl.
Whisk together and set aside.
Add butter, shortening, cocoa and water to a large saucepan and stir. Bring to a boil over medium-high heat.
Boil for 1 minute.
Remove saucepan from heat and add flour/sugar mixture. Stir to combine.
Add milk, cinnamon, vanilla, baking soda and eggs. Beat until combined.
Pour batter into prepared pan and bake for 15-20 minutes until a toothpick inserted into the middle of the cake comes out clean or with a few crumbs attached. (Mine is usually done in 15 minutes.)
Remove cake from the oven and cool on a wire cooling grid while you make the frosting.
For the frosting
Melt butter in a microwave-safe bowl or measuring cup in 20-second increments.
Add powdered sugar, melted butter, cocoa, milk and vanilla to a medium-sized mixing bowl.
Stir until combined.
Pour frosting onto warm cake.
Spread frosting evenly over cake with an offset spatula or a butter knife.
Let cake cool completely.
Cut into 16 even slices. Serve and enjoy!
Notes
Texas sheet cake can be stored covered in the refrigerator for up to 5 days, or at room temperature for up to 2 days. It can be wrapped in an airtight freezer bag or container and frozen for up to 1 month.