Line a baking sheet with parchment paper. Preheat the oven to 375°F.
In a small saucepan on medium-low heat, melt the butter with the brown sugar, and honey. Stir frequently until the sugar is dissolved. Set aside to cool.
In a mixing bowl, whisk together the flour, salt, spices, and baking powder.
Add the flour mixture and the egg into the melted butter mixture in the saucepan. Stir until it’s it forms a thick, sticky dough and there aren't any clumps of dry flour.
Roll the dough into 1-inch balls. Arrange on the prepared baking sheet, spaced about one inch apart from each other.
Bake for 8 to 10 minutes, just until the cookies are dry on top and starting to turn golden on the bottom. Watch them closely, because they bake quickly, and the bottoms can burn if you leave them in for just a couple minutes too long.
While the cookies bake, prepare the glaze. In a bowl, mix the powdered sugar and hot water until it forms a thick paste. Brush the warm cookies with the glaze, which will thicken as it cools. You can eat the cookies right away, but for the best flavor, allow them to cool completely then store in an airtight container for 2 to 3 days, for the flavor to deepen, then enjoy!