In a large bowl, mix together all the dry ingredients.
Add most of the buttermilk, saving a little to adjust the texture later.
Stir just until the dough comes together — no need to overmix.
If you still see dry patches of flour, add a bit more buttermilk until everything is fully combined.
Grease your bread pans or baking tins.
Transfer the dough to the pan and gently press it down with your hand.
Top with your favorite vegetables tossed in olive oil (think cherry tomatoes, sliced zucchini, red onion – whatever you’ve got!), then press them firmly into the dough.
Bake at 185°C (365°F) for 40 minutes.
Carefully remove the bread from the pan and return it to the oven directly on the rack for another 5–10 minutes. It’s ready when the bottom sounds hollow when tapped.