Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make red velvet molten lava cakes [title] Preheat the oven to 450 ° fahrenheit or 230 ° celsius. [step] Place the cooking rack in the middle position of the oven. [title] Grease 4 6-ounce ramekins with non-stick cooking spray.

Ending1: [step] Use a small plastic spatula to evenly spread the olive oil, milk, chopped onion, and canola oil evenly in the ramekins. [title] Place the cake potatoes (optional) in the greased ramekins. Ending2: [step] You'll use a wire cooking rack or a large frying pan as the primary heating source. They'll make a beautiful red velvet lava cake, perfect for baking cupcakes, cookies, or at parties. Ending3: [step] The ramekins must be well coated before you begin; otherwise, you won't be able to spread the steam. [substeps] Double check that the ramekins have been thoroughly coated with all the ingredients as well. Ending4: [title] Melt the white chocolate and butter on a double boiler. [step] Stir well with a rubber spatula until it's fully melted and is smooth.

Answer format: ending1/ending2/ending3/ending4