Wash the salmon well and pat it very dry.

Season both sides with salt, pepper, cumin, and paprika.

In a pan over heat, add the oil and let it heat up very well.

Place the salmon in the pan for three minutes on each side, then remove from heat.

In the same pan, add the butter, and once it melts, add the lemon juice, stir, and let it thicken.

Pour the sauce over the salmon.