Cut the garlic bulbs on the top and drizzle 1 tsp. of olive oil on each garlic bulb. Wrap the garlic bulbs with foil wrap and bake in the oven for 30-40 minutes.
In the meantime chop the parsley. Place the baguette onto a sheet pan lined with foil paper and slice the baguette.
Once the garlic has roasted, open up the foil and let it cool for 5 minutes.
Keep the oven on.
Squeeze out the garlic bulbs to remove the flesh onto a plate. Add in the softened butter, chopped parsley, salt and pepper. Mash everything together to form a paste. It does not have to be super creamy.
Rub the butter paste between the sliced baguette bread pieces. Brush a little bit of the leftover paste on the outside of the baguette bread.
Wrap with foil wrap and bake for 10 minutes. Remove from oven, open up the foil wrap and cook for another 5-10 minutes uncovered to allow it to get golden in color.
Remove from the oven and let it cool for a couple of minutes before serving.
Notes
It's very important to bake the garlic until it caramelizes to get the delicious garlicy yet sweet flavor.
Use different fresh herbs if you like. I prefer parsley as it's the perfect option for garlic bread.
Use unsalted butter and add salt to taste this way you can adjust the salt to your liking. Some salted butters can be very salty depending on the brand.
It is important to cover with foil wrap for first half of the cook time, this way the bread stay soft and only cooked uncovered until a little golden for the second half of the time.
If you love cheese, add some grated parmesan cheese between the pieces of bread. It comes out incredible.
Leave skin on garlic when you roast them to prevent them from burning and drying up.