1/4 cup of peanut or vegetable oil

2 tbsp of achiote (annatto) seeds

2 tbsp of unsalted butter

1-2 Thai chiles, with seeds, thinly sliced

4 garlic cloves, finely chopped

2 tbsp of fresh calamansi or lime juice

1 tbsp of reduced-sodium soy sauce

1 1/4 lbs of large shrimp, peeled, deveined

1 pinch Kosher salt, freshly ground pepper

2 scallions, thinly sliced

1 Toasted country-style bread (for serving)