1-First, preheat your oven to 375˚F and prepare the garlic by placing the head halves cut side up on foil. Drizzle with olive oil and season lightly with salt and pepper, then wrap and roast for 40 to 45 minutes until soft. Once done, let it cool for about 10 minutes before moving on.

2-Roasting the Garlic: Begin by roasting a whole head of garlic as described, which enhances its natural sweetness. This step is crucial for the gravy’s depth and takes about an hour including cooling. It’s a great way to add that caramelized taste without much hassle.

3-While the garlic roasts, measure out the other items like olive oil, butter, flour, and stock. This keeps things organized and helps the process flow smoothly. Preparing ahead ensures you can focus on cooking without interruptions.

4-Making the Gravy Base: In a pot over medium heat, melt the butter and whisk in the flour to form a smooth mixture. Cook this for about 2 minutes to remove any raw taste. Then, squeeze the roasted garlic into a paste and add it in, blending well.

5-Slowly pour in the chicken stock while whisking to avoid lumps, then lower the heat and simmer for 7 to 8 minutes. This results in a gravy that coats the back of a spoon perfectly. For dietary tweaks, use vegetable stock if needed to keep it vegan.

6-Once thickened, adjust the seasoning and serve hot. This step-by-step approach, including tips like stirring frequently, makes the process foolproof. The total time is around 1 hour 20 minutes, covering prep, cooking, and cooling.