Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make buckeyes [title] Mix butter, cinnamon, vanilla, powdered sugar, and peanut butter. [step] Soften the butter to room temperature so that it blends easily with the other ingredients. The quickest way to blend everything is to use an electric mixer, but stirring your mixture with a spoon can be just as effective, though slower.

Ending1: Continue mixing until everything blends together into smooth dough. [title] Shape the peanut butter dough into balls. Ending2: [substeps] If you don't have an electric mixer, you can use a pastry blender or other small handheld mixer instead, but turn the speed to medium for best results. You can use peanut butter for the creamed ingredients and this will do the trick too. Ending3: Mix in just the butter in between the other ingredients. [substeps] Kneading butter and sugar together is easy and requires little mixing. Ending4: Mix all of the ingredients well until you achieve a smooth, fluffy texture. [substeps] You don't need to add any sugar until the mixture is smooth and the butter is thicker than it needs to be.

Answer format: ending1/ending2/ending3/ending4