Preheat the oven: Preheat your oven to 325°F (163°C). Prepare a half sheet pan (13x18 inches) with foil and non-stick spray to ensure easy removal of the brittle.
Rinse the quinoa: Rinse ¼ cup quinoa under cold water for about 1 minute to remove saponins, then drain and set aside. This step is critical for reducing any bitter flavors.
Combine the sweet ingredients: In a microwave-safe bowl, combine ¼ cup maple syrup, ¼ cup honey, 2 tablespoons salted butter, 3 tablespoons brown sugar, 1 tablespoon coconut oil, 2 teaspoons vanilla extract, and ¼ teaspoon kosher salt. Microwave this mixture for 1-2 minutes until melted, then stir until the sugar is completely dissolved.
Add the nuts and seeds: Stir in 1 ½ cups finely chopped pecans, the rinsed quinoa you set aside, and 2 tablespoons sesame seeds. Mix well to ensure all ingredients are evenly combined.
Spread on the pan: Spread the mixture evenly onto the prepared half sheet pan, ensuring a uniform thickness for even cooking.
Bake to perfection: Place the pan in the oven and bake for 15 minutes. Afterward, rotate the pan and bake for another 10-15 minutes until golden brown, taking care to watch closely to prevent burning.
Salt and cool: Once removed from the oven, immediately sprinkle flaky sea salt over the top. Let the brittle cool completely on the pan; it will firm up as it cools.
Break into pieces: Once fully cooled, break the brittle into pieces and store them in an airtight container for optimal freshness.
Following these steps will lead you to a delectable treat that's sure to impress your taste buds!