-<li>Separate the cloves of the garlic heads; leave the skin on the
-individual cloves (only removing lose bits of skin).</li>
-<li>Put onto a piece of aluminum foil and throw a tablesoon of olive
-oil on top of the cloves.</li>
-<li>Rub the olive oil over the cloves</li>
-<li>Turn the foil into a pouch and throw in the oven at 250°F for an hour</li>
+<li>Preheat oven to 400°F</li>
+<li>Remove papery skin, keeping head intact</li>
+<li>Chop tops of cloves off (to ensure cell walls are damaged and
+garlic flavor can develop)</li>
+<li>Put onto a piece of aluminum foil and drizzle a tablesoon of olive
+oil on top of the cloves, making sure it soaks into cut</li>
+<li>Turn the foil into a pouch and roast in a preheated 400°F oven for
+an hour</li>