Roll the slices of bread out until they condense right down, then cut out shapes using a knife or a cookie cutter.
Pour the oil onto a plate, then dip each side of the bread base into it and put them onto a lined baking tray.
Bake for 10 minutes or until crisp, then allow to cool completely.
Smoked salmon mousse topping
Blend the smoked salmon, cream cheese, creme fraiche, lemon juice, lemon zest, and chives together until smooth. Season with salt and pepper.
How to assemble
Use two teaspoons to quenelle the smoked salmon mousse on top of each canape base.
Use another teaspoon to gently top the canapes with pearls of salmon roe.
Garnish with a small sprig of fresh dill and serve immediately.
Notes
You can also mix the smoked salmon mousse by hand using a fork to break apart the fish and blend it together with a spatula. It will just be a bit chunkier, but that's no bad thing.You can use storebought crostini or blinis instead of the canape bases to save time.