Eggnog Crumble Muffins (with gluten-free option)

Although I love the flavor of eggnog, I don't indulge in it very often as it's a little too rich and heavy for me. But these Eggnog Crumble Muffins? That's a whole different story! They have that quintessential, seasonal flavor all wrapped up in a moist, tender-crumbed muffin that's perfect for a weekend breakfast or holiday brunch. The sweet, buttery crumble topping and a drizzle of eggnog glaze are the crowning glories.