Irish Soda Muffins

These oat and buttermilk muffins take the flavors of Irish soda bread and bake them into individual portions. Soaking the rolled oats in buttermilk for at least an hour (or overnight) is the step that makes all the difference.

That soak softens the oats so they meld into the batter rather than sitting as hard, chewy bits in the finished muffin. The buttermilk’s acidity also begins breaking down the oat starches, creating a more tender crumb than just mixing dry oats into a batter would produce. Overnight soaking yields the softest results.

Brown sugar instead of white gives these a warm, molasses-tinged sweetness that’s more interesting than plain sugar. It also keeps the crumb moist longer than granulated sugar would, so these taste fresh into the second day.

The baking soda reacts with the buttermilk’s acid for lift, while the baking powder provides additional insurance. Together they give the muffins a reliable rise despite the heavy, wet oat mixture weighing the batter down. Mixing just until moistened and leaving the batter slightly lumpy is standard muffin technique. Overmixing makes them tough and peaked.

Kitchen Tips

• Soak the oats overnight if you have the time. An hour works, but the overnight soak produces a noticeably more tender muffin.
• No buttermilk? The recipe includes a sour milk substitute: 1 tablespoon lemon juice or vinegar plus enough milk to make 1 cup, rested for 10 minutes.
• Fill muffin cups two-thirds full. These rise significantly and will overflow if filled higher.
• These are best served warm from the oven, split and buttered.

Variations

• Currant swap: Use dried currants instead of raisins for a more traditional Irish soda bread flavor.
• Orange zest: Add a tablespoon of grated orange zest to the batter for a citrus note that brightens the oaty flavor.