Add the peel and juice of <quantity>1</quantity> lemon to a blender

Add salt to taste

Add <quantity>3<unit>cups</unit></quantity> of elderflower and <quantity>1½<unit>cups</unit></quantity> of lemon verbena

Add <quantity>400<unit>ml</unit></quantity> of extra virgin olive oil. Blend on medium-high speed until almost smooth

Add the seeds and pod of <quantity>1</quantity> vanilla bean to a bowl

Add the oil and whisk to combine. Let the vanilla sit in the oil for at least 2h to infuse the flavors

Strain through a mesh sieve. The elderflower & vanilla oil is ready

Enjoy. Try it with asparagus or any other summer vegetable!