Wash your shrimp under cold water. Pat them dry with a paper towel. This helps them sear very well. They will get very crispy.

Put the shrimp in a bowl. Add the chili powder and cumin. Toss them until they are coated. Ensure every shrimp has spice.

Heat your frying pan on high. Add a splash of olive oil. Wait for the oil to shimmer. This means it is hot.

Place the shrimp in the hot pan. Cook them for two minutes per side. They should turn pink and firm. Do not overcook them.

Remove the shrimp from the heat. Squeeze some fresh lime juice over them. This adds a great zing. It finishes the flavor perfectly.

Mix the sour cream and lime zest. Do this in a small bowl. This is your taco cream sauce. It should be very smooth.

Warm your corn tortillas in a pan. Let them get slightly charred and soft. This makes them taste authentic. It also makes them flexible.

Place a spoonful of cabbage on tortillas. Add three or four cooked shrimp. This is the base layer. It looks very colorful.

Drizzle the lime cream over the top. Add a few slices of avocado. This makes it look gourmet. It adds a rich feel.

Top with fresh cilantro and extra lime. Serve the tacos while they are hot. Enjoy your delicious homemade meal. You are a chef.