01 -
Fire up the oven to 350°F (175°C) and let it get warm.
02 -
Toss the cake mix, pudding mix, oil, water, eggs, and vanilla into a big bowl. Use an electric mixer to beat it all together until it's smooth—no lumps allowed!
03 -
Grab a 9x13 inch baking dish, grease it well, and pour in your batter. Smooth everything out to even it up.
04 -
Pop the dish into the oven and bake it for 30-35 minutes. Stick in a toothpick—if it pulls out clean, you're good to go.
05 -
While the cake's in the oven, mix together powdered sugar, melted butter, cream, and lemon juice until it's silky and smooth.
06 -
Pour the glaze all over the hot cake and spread it around. Let it cool fully before slicing it up.