Add the butter into a large bowl, along with the olive oil, grated garlic, and chopped parsley, whisk together until you get a mixture with lumps, then add in the shredded Manchego cheese, shredded Swiss cheese, sliced green olives, sliced black olives, and season with a kiss of salt & black pepper, mix together until well mixed

Cut the baguette in half lengthwise, then scoop some of the innards to create a shallow well

Evenly spread the cheese mixture onto the two pieces of baguette, then top off with the grated cheese, making sure to cover the entire surface of each bread

Add the stuffed breads into a baking tray that's lined with parchment paper and put them into a preheated oven at 350°F / 175°C for 15 to 20 minutes, or until the cheese is fully melted

Once the cheese is fully melted, remove from the oven and let the bread rest for a couple of minutes before serving, then top off with chopped chives and enjoy!