Smoked paprika is available at better supermarkets, at specialty foods stores, and from latienda.com
Mix tomatoes and sugar in a large wide shallow pot. Let stand at room temperature for 10 minutes. Bring to a boil over medium-high heat, occasionally stirring gently. Boil, stirring often, for 15 minutes. Stir in salt, pepper, and paprika. Cook until thickened and reduced to 2 cups, about 10 minutes. Ladle into a clean, hot 1-pint jar. Wipe rim, seal, and process in a boiling water bath for 10 minutes.