Juicy canned diced tomatoes help you get your bruschetta fix outside of summer. Because tomato is the star here, splurge on a high-quality brand.
In skillet, cook onion in oil over medium-high, stirring often, until golden, 5 minutes. Add garlic; stir 1 minute. Stir in tomatoes and raisins. Reduce heat; simmer 5 minutes. Stir in capers. Cook 1 minute; let cool. Pile on toast; top with basil.