Pumpkin spice glaze is powdered sugar whisked with melted butter, milk, and pumpkin spice. It pours on thick and glossy, then sets soft as it cools.

Reach for it when you want to finish pumpkin muffins, spice cupcakes, cinnamon rolls, or a plain bundt cake. Anything pumpkin flavored takes it well, so it covers most of your fall baking. Four ingredients, about five minutes, no cooking beyond melting the butter.

The spice goes into the warm butter first. That one step is the difference between a glaze that tastes like pumpkin spice and one that only looks like it.

Why You’ll Love This Recipe

Nothing special to buy. Powdered sugar, butter, milk, and a jar of pumpkin pie spice. Your own homemade spice blend works just as well.
You control the thickness. Keep it loose for a thin drizzle over a cake, or let it firm up for a thick icing that sits on top of a cupcake.
Scales and waits. Double or triple it for a full tray, or make it a day ahead and warm it back to pouring consistency when you need it.

Ingredients and Substitutes

Powdered sugar. The body of the glaze and all of the sweetness. Sift it first if you don’t want to chase lumps around the bowl.
Unsalted butter. Adds richness and gives the glaze its shine. Unsalted keeps the salt level in your hands.
Milk. Loosens the glaze to a pourable consistency. Whole milk gives the richest result.
Pumpkin pie spice. The whole point of the glaze. Either a jar from the store or your own mix is fine. If you don’t have a favorite yet, I like this pumpkin pie spice blend from Sally’s Baking Addiction.
Salt. Keeps the glaze from tasting flat and one note sweet.

Step-by-Step: How to Make Pumpkin Spice Glaze

Bloom the spice. Melt the butter in a small saucepan over low heat, then stir in the pumpkin pie spice. Keep it on the heat for 30 to 60 seconds, until it smells strongly of spice. Off heat immediately if it’s close to bubbling.
Add the milk and salt. Whisk them straight into the warm butter. The mixture may look split at this point, which is fine. It comes together once the sugar goes in.
Whisk in the sugar. Combine the sifted powdered sugar and butter milk mixture and whisk until smooth and glossy. It will be thin and warm at this stage.
Taste and adjust. If it tastes flat, add another small pinch of salt. Let it sit and thicken before you use it.

Tips for Success

Let it thicken more than feels right. Straight off the heat it’s far too thin to glaze anything. Wait until a spoonful falls back into the bowl in a slow ribbon rather than running off, then dip.
Dunk, don’t pour. Hold a cooled muffin or cupcake upside down and lower the top into the bowl, then lift it straight out and give it a small twist. You get a clean, even coat every time. Pouring leaves bare patches and runs down the sides.
Use water to control the consistency. Sit the bowl in cold water and whisk to thicken it in a minute or so, or in warm water to loosen a glaze that has stiffened up. Stirring in more powdered sugar thickens it too, though you don’t want to overdo it.
Cool your bakes first. Glaze slides straight off a warm muffin and soaks in instead of setting on top. Give them time to come to room temperature.

Ways to Use Pumpkin Spice Glaze

Pumpkin bakes. The obvious home for it. Spoon it over pumpkin financiers once they’ve cooled, or use it on pumpkin éclairs in place of the maple glaze if you want the pumpkin flavor running all the way through. Let it thicken a little more than usual for éclairs so it sits on top instead of running down the sides.
Muffins, cupcakes, and breakfast bakes. Dip the tops of spice muffins or cupcakes straight into the bowl. It also works on pumpkin baked oatmeal cups when you want them to feel more like a treat than breakfast.
Cakes. Match the consistency to the shape. Keep it thinner for a sheet or tray cake, so it spreads out and reaches the corners. Go thicker for a bundt or a loaf, where a thin glaze just slides down the sides and pools on the plate.
Donuts. A batch of pączki takes it well, though wait until they’re fully cool or the glaze slides down.

Storage

Keep the glaze in a sealed container in the fridge for 3 to 4 days. It sets firm in there, so it won’t be pourable straight out.

To use it, sit the container in a bowl of warm water and whisk until it loosens back to a thick, pourable consistency. Go slowly and stop while it’s still thick enough to coat, since an overheated glaze runs straight off whatever you put it on.