½cupvegetable oil, neutral like grapeseed or sunflower
⅔cupgranulated sugar(130 grams)
1teaspoonvinegar
1largeegg
1tablespoonred food coloring or 1 teaspoon Super Red
¾teaspoonvanilla
3tablespoonssour cream(42 grams)
1tablespoonwhole milk(15 grams)
Instructions
Preheat oven to 350 degrees F. Line 10 muffin cups with paper liners.
Prepare filling first. With a mixing spoon, heavy duty scraper or an electric mixer, beat together softened cream cheese and sugar. Add egg and vanilla and stir until smooth. Set aside.
In any bowl, thoroughly stir together flour, cocoa powder, baking soda and salt.
In a mixing bowl, stir together oil, sugar, vinegar, egg yolk, red food coloring, vanilla, sour cream and milk. Mix very well, then add the flour mixture and stir just until blended.
Measure out approximately ⅓ cup red mixture and set aside. You can do this physically or mentally. Make a note in your head that you need to hold some back to swirl on top.
Divide remaining red mixture among the muffin cups – each cup should be around ⅓ of the way full. An Oxo medium size cookie scoop worked well for scoop/spooning the batter. It's a thick but not dry batter, maybe a little looser than muffin batter but not liquid like cake batter.
Spoon cream cheese mixture over red mixture, dividing evenly between all cups. Drop tiny bits of reserved red batter on top of cream cheese mixture. Sprinkle with mini white or chocolate chips (optional)
Bake for 20 to 23 minutes. Let cool on a wire rack. Carefully remove lift muffins from cups. Let cool.