Remove from the oven and let the ham bites cool for a few minutes; the glaze will thicken slightly as they rest. Transfer to a serving platter, add toothpicks if you’d like, and serve warm.
For kids who don’t love mustard, you can cut the Dijon down to 1–2 teaspoons or swap it for mild yellow mustard so the flavor is softer. If your family likes a little kick, stir in a pinch of red pepper flakes or a few dashes of hot sauce with the syrup and mustard. To lean into more classic holiday flavors, add 1/4 teaspoon of ground cinnamon or a tiny pinch of ground cloves to the glaze—it gives a cozy, almost honey-baked ham feel without adding sugar. You can also tuck a small chunk of cheese (like cheddar or pepper jack) under each ham cube and secure it with a toothpick before baking; just know this makes it a four-ingredient recipe, but it’s a fun option for cheese lovers. For extra crunch, sprinkle chopped pecans or walnuts over the top during the last few minutes of baking, as long as no one has nut allergies. If you’re cooking ahead for a busy holiday, you can cube the ham and mix the glaze a day in advance, then toss and bake right before guests arrive so the house smells wonderful when everyone walks in.