Position a rack in the center of the oven and preheat to 325º. Line a rimmed baking sheet with parchment paper. Have a second rimmed baking sheet and piece of parchment ready.
Combine the oats, almonds, sugar, and ground cardamom together in a large bowl. In a small saucepan, melt together the butter, honey and salt, stirring to dissolve the salt. Pour over the oat mixture, tossing to combine thoroughly.
Dump the mixture onto the lined baking sheet, and spread it into a thin sheet no thicker than an almond. Ideally, the edges will be slightly thicker than the center as they will bake faster. Lay the second piece of parchment over the granola, and place the second sheet pan on top, right-side up, making a little granola sandwich.
Slide the whole thing into the oven and bake for 20 minutes. Rotate and continue baking another 10 - 20 minutes, peeking under the parchment to make sure the edges aren't burning, until the granola is a rich golden brown. It will still be soft, but should crisp up as it cools. (If the granola is still soft after cooling, return it, uncovered, to a low oven (around 150º) and let it dry out for 20 minutes or so.)
Let the granola cool completely in the sheet pan sandwich, then break up into large sheets or clumps, add in the pistachios, and store in an airtight container for up to a month (or possibly more.)
Enjoy over fruit and yogurt for breakfast, alone for a crunchy snack, or over ice cream (saffron?) for a decadent dessert.
Adapted from Casey Hayden of Moose’s via Claire Legas.Just a heads up - the pistachios must be added at the end to the baked granola; if baked into the granola, these delicate nuts will burn before the rest of the granola has finished baking. Pistachios' mysterious flavor pairs nicely with the honey and cardamom, but you could substitute cashews (and add them with the almonds). If only whole, green cardamom pods are available, crack them open and pull out the black seeds to make a teaspoon.The amount of cardamom here is subtle but still noticeable.Nutritional values are based on one of twelve servings.