Spread the bread chunks out on a baking sheet. Pour some oil into a small dish and swish the garlic clove around in it; drizzle over the bread and toss to lightly coat, then toast in the oven until golden. To make the dressing, shake everything up in a jar or whisk together in a bowl. Store in the fridge for up to 2 weeks. Build your salad with greens, crumbled bacon and croutons, then top with an egg and drizzle with dressing.