Grate the carrots and set aside.
In a large bowl, whisk together the flour, baking powder, salt, brown sugar, and spices.
In a separate bowl whisk together the egg, heavy cream and vanilla.
Take the browned butter out and if it’s solid as one block, slice it into smaller bits. Add it to the dry ingredients then use a pastry cutter to cut it so that the butter pieces are about the size of a mix of kidney and black beans.
Add the carrots and nuts, then use your hands to toss all the ingredients together.
Pour in the egg mixture and stir the dough with a rubber spatula. Then use your hands to bring the dough together by folding it over itself a few times and squeezing the dough into a shapeless ball.
Flour the countertop and pat the dough into a rectangle that’s about 13 x 10’. Fold it over itself once then pat it out again. Use a bench scraper to slice it in half in the center, then each smaller rectangle into half again. You’ll have four (almost) squares. Slice them in half diagonally so you have 8 triangles.
Set the scones on a baking tray lined with parchment paper. Freeze them for at least 10 minutes. If you’d like to freeze them overnight, set them in an airtight container in the freezer (you can bake them from frozen in the morning).
Preheat the oven to 400 F. For a crunchy top, brush the scones with heavy cream or milk and sprinkle on some granulated sugar (the less fine the sugar the more crunch you’ll get, organic or turbinado work great here).
Bake the scones for about 20 minutes, until golden all around the edges.
If you’d like to glaze them, wait until the scones are cool then whisk all the glaze ingredients together. If the glaze is too thick add more heavy cream, if too thin add more powdered sugar. Spoon it over the scones and sprinkle on some more chopped nuts if desired.