Orange Cube Minute Muffins

These orange cube muffins are vintage 1950s home baking at its cleverest. A simple quick-bread batter (just one egg, milk, orange zest, sugar, and baking mix) gets topped with an orange juice-soaked sugar cube before baking, which melts into a candied pocket of citrus syrup right on top of every muffin.

The trick behind these muffins is understanding why they work. Sugar cubes melt slowly in the oven rather than dissolving like granulated sugar, so the top of each muffin gets a crunchy caramelized crust. The orange juice dip wets the cube just enough to kickstart that melting without dissolving it entirely. The batter itself stays barely mixed (lumpy is exactly right for tender muffins, because over-stirring develops gluten and creates tough, rubbery results).

Kitchen Tips

• Mix only until the dry ingredients disappear into the wet. Ten seconds too many and your muffins turn gummy.
• Dip the sugar cubes quickly. A long soak dissolves them before they reach the oven.
• Grease muffin cups well or use paper liners. The sugar cube can ooze sticky caramel over the sides.
• Eat the same day for the crunchiest topping. The sugar softens as the muffins sit.

Variations

• Swap orange zest and juice for lemon for a brighter, more tart flavor.
• Stir a tablespoon of poppy seeds into the batter for classic orange-poppy seed muffins.
• Replace the sugar cube with a small cube of cream cheese mixed with orange zest for a surprise center.