Treat yourself to delicious easy rhubarb muffins for breakfast or a snack. Enjoy a burst of tart flavor glazed with sweetness and made with whole-grain for an extra nutritious boost.
Heat oven to 350 degrees. Prepare 12 muffin cups by greasing or adding cupcake liners.
In a large mixing bowl combine the first six ingredients, mixing well.
In a 4-cup glass measure combine egg, oil, juice and zest; stir into the dry ingredients, making sure that everything is moist but not over mixing. Fold in rhubarb.
Fill prepared muffin cups about 3/4 full (a spring-loaded large cookie or ice cream scoops works great for this).
Combine all the topping ingredients in a small bowl and divide it evenly over the tops of the filled muffin cups.
Bake for about 18-20 minutes or until a toothpick come out clean, rotating pans halfway through baking.
Cool for a 10 minutes in pan and then remove muffins to a wire rack - carefully, these are delicate muffins.
Meanwhile, prepare the glaze by whisking the juice and powdered sugar together until it's a pouring consistency. Use a spoon to drizzle the glaze over the tops of the cooling muffins.
Serve slightly warm or let cool completely before storing at room temperature for a day or two. These muffins freeze beautifully for a couple months, as well.
Notes
Store at room temperature for 3-4 days. Freeze for longer storage, 3-4 months.