[header] How to prepare carne asada tacos [title] Heat the cooking oil, or lard in a skillet on medium-high. [title] Make the taco shells. [step] Use a pair of tongs to hold half of the tortilla under the oil for 1 to 2 minutes until the shell becomes slightly firm and golden brown in color. 
Flip the tortilla over in the skillet and repeat. [title] Set the shell over a paper towel with the closed side facing up so the excess oil can drain.