Many recipes call for ripe tomatoes cut into 1/4-inch dice. Here's an easy way to produce uniform pieces.
When dicing tomatoes, we prefer to use a chef's knife. A paring knife is too short to make it through larger tomatoes, and while serrated knife can saw easily through leathery tomato skin, it can also tear at the flesh. A good, sharp chef's knife will nimbly cut through skin and create neat cuts in the flesh.