Pat the chicken dry and season both sides with salt and pepper. In a shallow bowl, add the cassava flour. Dredge each piece of chicken into the flour so that they are evenly coated, shaking off any excess.

Reduce the heat to medium and add the cherry tomatoes, red pepper flakes, garlic, shallot, and sun-dried tomatoes. Cook, tossing often, until the tomatoes begin to blister and soften, about 4 minutes.

Add the tomato paste and stir until well combined (it’s okay if the tomatoes begin to burst open and break). Stir in the chicken broth until the tomato paste is well incorporated and reduced by half, about 3 minutes.

Stir in the coconut milk and bring the sauce to a rapid simmer. Once simmering, reduce to a light and steady simmer (about medium to medium-low heat) and nestle the chicken back into the sauce and top with the basil. Cook, simmering uncovered, until the sauce has thickened and the chicken is cooked through, 7 to 10 minutes.