Put the beans into a pot of salted boiling water and cook until just done, about 3 to 5 minutes. Drain and pop them into an ice bath so they stop cooking, then drain and dry them with a dishtowel.
Now make the dressing: put the vinegar, mustard, olive oil, salt and pepper into a little jar and shake shake shake.
Put the beans, tomatoes and basil into a bowl. Drizzle on the dressing, tasting as you go until the salad is dressing to your liking. Ready to serve!
Notes
Green beans: You can either use the already trimmed ones you can find in a bag, or scoop up a handful from the bin in your produce section.
Tomatoes: We love cherry tomatoes all year round for this recipe, but in the summer you can also cut up local large sized tomatoes.
Vinegar: You can find sherry vinegar with the other vinegars in your supermarket. Rice wine or white wine vinegar will also work.
Mustard: We like Dijon mustard for this recipe, but whatever mustard you have on hand will work.
Basil: Making this in the winter? It’s okay to either leave out the basil, or sprinkle on some dried basil.