Ingredients
Method
Preheat and Prep
- Heat your oven to 375°F (190°C). Line a 12-cup muffin tin with liners or grease the wells lightly.
Dry Mix
- In a large bowl, whisk together the flour, cocoa powder, sugar, baking powder, baking soda, and salt. Make sure there are no lumps of cocoa.
Wet Mix
- In a separate bowl, beat the egg lightly, then stir in the buttermilk, oil (or melted butter), and vanilla.
Combine
- Pour the wet ingredients into the dry ingredients and fold gently until mostly combined. A few streaks of flour are fine — over-mixing will make the muffins tough.
Add Chocolate and Plums
- Fold in 3/4 of the chocolate chips and the diced plums. Save the rest of the chips to sprinkle on top. If the batter looks thick, a splash (1–2 tbsp) more buttermilk can loosen it.
Fill Tins
- Spoon the batter into prepared muffin cups, filling them about 3/4 full. Top each with a few reserved chocolate chips and a tiny sprinkle of coarse sugar if you like a crunchy top.
Bake
- Bake for 18–25 minutes, until a toothpick inserted into the center comes out with a few moist crumbs and the tops spring back. Watch the first batch closely — ovens vary.
Cool and Enjoy
- Let muffins cool in the pan for 5–7 minutes, then transfer to a wire rack. These are excellent warm, with the chocolate still melty.
Notes
Use slightly firm-ripe plums so they hold shape while baking. If plums are extremely juicy, toss them in a teaspoon of flour to help prevent sinking. If you prefer milk chocolate, it works too — go with your taste.
