How to wire up a click event for a custom usercontrol button? Should I use CustomControl?

I wanted to create a button that had an image and a textblock as content. So I went about looking for an answer and found a post (Reusable Custom Content for Buttons) which told me to create a usercontrol.

I did this and it works great. I can set the image source and text through dependency properties. However, I am stuck as there is no click event for my control.

I did a little more digging and concluded that I probably need a CustomControl derived from Button. Is this correct? Or would it be better to wire up a click event to my UserControl?

Here's my UserControl:

<UserControl x:Class="Client.Usercontrols.MyButton"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" MinHeight="30" MinWidth="40"
    DataContext="{Binding RelativeSource={RelativeSource Self}}">

    <Button Width="Auto" HorizontalAlignment="Center">
        <Border CornerRadius="5" BorderThickness="1" BorderBrush="Transparent" >
            <Grid>
                <Image Name="tehImage" Source="{Binding ImageSource}" />
                <TextBlock Name="tehText" Text="{Binding Text}"
                           Style="{DynamicResource ButtonText}" />
            </Grid>
        </Border>
    </Button>
</UserControl>

Implementation

<my:MyButton ImageSource="../Images/MainSyncButton.png" ImageWidth="141" Text="Synchronise" Click="btnSynchronise_Click" />