Bring a medium pot of water to a rapid boil on the stove. 

Score a small “X” on the bottom of each tomato with a paring knife. (You can also cut the “X” after putting the tomato in the boiling water if you prefer.)

Submerge the tomatoes into the boiling water for 30 seconds. Then put the tomato in the ice water.

When you remove the tomato, the skin around your “X” should be peeling away slightly. Grab hold of the peel and the tomato skin should come right off.

Then slice the tomato in half and easily scoop out the seeds.