01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper or foil for easy cleanup.
02 - Pat the salmon fillets dry with paper towels. Season both sides with salt and pepper.
03 - In a small bowl, whisk together the maple syrup, Dijon mustard, whole grain mustard, lemon juice, olive oil, and garlic powder until smooth.
04 - Arrange the salmon fillets on the prepared baking sheet, skin-side down if applicable.
05 - Brush each fillet generously with the maple mustard glaze, reserving a small amount for serving.
06 - Bake for 12–15 minutes, or until the salmon is just cooked through and flakes easily with a fork. Thicker fillets may require an extra minute or two.
07 - Remove from the oven and brush with the reserved glaze. Serve immediately, garnished with fresh herbs or lemon wedges, if desired.