Heat the oven to 400°F on convection mode or 425°F on standard mode with a rack in the upper middle position and another in the lower middle position.
In a small bowl, mix together cream of tartar, kosher salt, baking soda, and arrowroot starch to make grain-free and paleo baking powder.
Pat the wings dry with a paper towel and place them in a large bowl. Pour the flour mixture on top and toss well to combine.
Arrange the chicken wings on two greased wire racks set in two rimmed baking sheets.
Place the tray of wings on each rack in the oven and bake for 20 minutes.
Then, flip each chicken wing over and swap the top tray with the bottom one.
Bake for another 20 to 25 minutes or until the skin is crisp and golden. You may need to switch the pans again if the top one is browning too quickly.
While the wings are baking, make the sauce! Add the coconut aminos, honey, sriracha, and minced garlic to a small saucepan and cook on high heat until boiling.
Lower the heat to simmer the sauce, stirring occasionally, for 8 to 10 minutes or until slightly thickened and reduced.
Want a thicker sauce? Add an arrowroot starch slurry! Mix a teaspoon of arrowroot starch with an equal amount of water in a small bowl to make a slurry. Stir the slurry into the sauce until thickened. Then, remove the saucepan from the heat.
Transfer the sauce to a large mixing bowl and add the crispy baked wings. Toss the wings with the sauce.
Top with sesame seeds and scallions and serve immediately!